HDS Does Not Communicate With The Pcm Or The Vehicle

Diagnostic procedure

• 1. Troubleshoot the DLC circuit - Refer to:

  DLC Circuit Troubleshooting (2016 2017 2018)

  DLC Circuit Troubleshooting (With CAN Gateway) (2019 2020 2021)

  DLC Circuit Troubleshooting (Without CAN Gateway) (2019 2020 2021)

Also check for

Correct HDS software